Antisymmetric resonant vibrational Raman scattering

✍ Scribed by Fan-chen Liu; A.D. Buckingham

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 621 KB
• Volume: 207
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(93)89008-6

✦ Synopsis

Antisymmetric resonant vibrational Baman scattering is studied using time-reversal symmetry. Under the Born-Oppenheimer approximation, for even-electron systems with the ground and the excited vibronic states belonging to real representations, the antisymmetric resonant Baman transition polarizabilities are strictly zero due to time-reversal symmetry. Only if the ground or the resonant excited vibronic states of an even-electron system belong to E representations of groups C., Cd or S,, (n2 3), or for an oddelectron system, can the antisymmetric vibrational resonant Baman transition polarizability be nonzero. The results explain the inconsistency between the space symmetry prediction and the experimental facts of antisymmetric resonant Baman scattering.